1987 MAZDA 626 tire size

TROUBLESHOOTING (G4A-HL) 7B
STEP 5 (ROAD TEST)
This step is performed to inspect for problems at the various ranges.
If
these tests show any problems,
adjust or replace by referring to the mechanical sections.
Perform the test at normal ATF operating temperature (50—80°C, 122—176°F).
D Range Test
Shift point, shift pattern, and shift shock
1. Shift the selector lever to D range and depress the OD OFF switch.
2. Accelerate the vehicle with half (4/8) and full (8/8) throttle valve opening.
3. Check that 1-2, 2-3 and 3-OD up-shifts and downshifts and lock-up are obtained. The shift points
must be as shown in the D range shift diagram.
Note
a) Vehicle speed on a chassis roller may not meet the specified shift diagram because of
tire size.
b) There is no lock-up or OD when the coolant temperature is below 72°C (162°F), and when
the OD OFF switch is depressed.
4. Check the up and down shifts for shift shock or slippage.
5. While driving in 3rd (50—60 km/h, 31—37 mph) shift the selector lever to 2 range and check that
3-2 downshift immediately occurs, then decelerate and check that engine braking effect is felt in
2nd gear.
D range shift diagram
FE engine
Caution
8/8 n
-OD
0 20(12) 40(25) 60(37) 80(50) 100(63) 120(74) 140(87)
Vehicle speed km/h (mph)
76GC7B-057
7B—53

TROUBLESHOOTING (G4A-HL) 7B
1 Range Test
Shift pattern
1. Shift the selector lever to 1 range.
2. Accelerate the vehicle with half (4/8) and full (8/8) throttle valve opening.
3. Check that the 1-2 up- and down-shifts are obtained and that no 3rd gear, no OD, and no lock-up
are obtained. The shift points must be as shown in the 1 range shift diagram.
Note
Vehicle speed on a chassis roller may not meet the specified shift diagram because of tire
size.
4. Check the up and down-shifts for shift shock or slippage.
5. Drive in 1st gear then decelerate and check that engine braking effect is felt.
1 range shift diagram
FE engine
8/8-1 i
7/8-
6/8-2
2 CT>
I 4/8-a> a. o a> 3/8-
o
2/8-
1/8-
20 40 60 80 (25) (37) (50)
Vehicle speed km/h (mph)
80 100 120 140 (63) (74) (87) (12)
76G07B-059
7B—55

ANTI-LOCK BRAKE SYSTEM (ABS) 1 1
TROUBLESHOOTING
Precaution
Conditions that are not malfunctions
1. It may happen that vibration is felt in the steering wheel, body, and/or brake pedal when the ABS
is functioning; such vibration is simply an indication that the system is functioning.
2. Sound of the pump motor operating, accumulator pressure being released, or the relay operating
may be heard from the engine compartment when the engine is started as the system is being auto-
matically checked.
3. The ABS pump motor may be automatically activated even though the ABS is not operating.
4. The ABS warning light may illuminate under any of the following conditions:
• When the vehicle is traveling on snow or ice with the parking brake activated or a brake dragging
at one wheel.
• When different-sized tires are used.
• When tires of different gripping performance are used.
• When (while the vehicle is jacked up or stuck) only the front wheels are spun for 20 seconds or more.
• When there is insufficient battery voltage.
Note
Under the above conditions, the warning light will not illuminate a second time when the
ignition is switched OFF then back ON, and there will be no memory entry to the control
unit of a problem.
Troubleshooting notes
The ABS is composed of electrical components, mechanical components (hydraulic unit), and the com-
ponents of the standard brake system.
Fundamentally, malfunction of the ABS electrical or mechanical components is judged by the self-
diagnosis function within the ABS control unit. And malfunctions are indicated by the warning light
in the instrument panel.
The location
of
a malfunction is indicated by the technician switching the system to the diagnosis-indication
mode.
The self-diagnosis and indication functions must be used when malfunctions of the ABS are being
diagnosed.
76G11X-091
11—73

1 2 OUTLINE, TROUBLESHOOTING GUIDE
OUTLINE
SPECIFICATIONS
Type
Item Standard Temporary spare (if equipped)

Wheel
Size
5-J
x 13

4-T
x 15

Wheel
Size 5 1/2-JJ
x 14
4-T
x 15

Wheel
Size
6-JJ
x 15

4-T
x 15

Wheel
Off set mm (in) 42 (1.65) 53 (2.09)
Wheel Diameter
of
pitch circle
mm
(in) 114.3 (4.5) Wheel
Material Steel
or
aluminum alloy Steel
Wheel
Number
of
fixing nuts
13 inch-wheel 4
4
or 5

Wheel
Number
of
fixing nuts 14 inch-wheel 5 4
or 5

Wheel
Number
of
fixing nuts 15 inch-wheel 5 4
or 5

Tire
Size
13 inch-wheel
6.45—13—6PR
165 SR13 165/80R13 82S 185/70HR13 185/70R13 85H
T125/70D15
Tire
Size 14 inch-wheel
185/70HR14 185/70R14 87H 185/70R14 88H 185/70VR14
T125/70D15
Tire
Size
15 inch-wheel 195/60R15 86H
195/60VR15
T125/70D15
Tire
Air pressure
kPa (kg/cm2,
psi)
Front 216 (2.2, 31) or 196 (2.0, 28) "See tire labels for application 412(4.2, 60)
Tire
Air pressure
kPa (kg/cm2,
psi) Rear 177 (1.8, 26)
412(4.2, 60)

TROUBLESHOOTING GUIDE 76G12X-001
Problem Possible Cause Remedy Page
Premature tire wear

Incorrect tire pressure Adjust 12-
2
Tire squeal
Incorrect tire pressure Tire deterioration
Adjust ReDlace
12-
2
Road noise or body vibration
Insufficient tire pressure Unbalanced wheel(s) Deformed wheel(s)
or
tire(s) Irregular tire wear
Adjust Adjust Repair
or
replace Reolace
-1

12-
2
12-
5
Steering wheel vibration
Irregular tire wear Right and left tread depths different Deformed
or
unbalanced wheel(s) Deformed tire(s) Unequal tire pressures Loose lug nuts
Replace Replace
Replace
or
adjust Replace Adjust Tiahten
12-
5

12—
2
12-
5
Uneven (one-sided) braking
Unequal tire pressures Adjust 12-
2
Steering wheel doesn't return properly, or pulls to either left or right while vehicle moving on level road surface

Incorrect tire pressure Irregular tire wear (left and right are different) Unequal tire pressures Different types
or
brands
of
tires mixed (right/left) Improperly tightened lug nuts
Adjust Replace Adjust Replace Tighten
12-
2

12—
2

12-
5
General driving in-stability

Unequal tire pressures Deformed
or
unbalanced wheel(s) Loose lug nuts
Adjust Replace
or
adjust Tiahten
12-
2
12-
5
12-
5
Excessive steering wheel play
Loose lug nuts Tighten 12-
5
76G12X-002
12-2

30 TECHNICAL DATA
12. WHEEL AND TIRE
* ~— - Type
Item ~ ———_____ Standard Temporary spare
(if equipped)

Wheel
Size
5-Jx13
4-T
x 15

Wheel
Size 5 1/2-JJx14 4-T
x 15

Wheel
Size
6JJx15
4-T
x 15

Wheel
Offset
mm (in)
42 (1.65) 53 (2.09)
Wheel Diameter
of
pitch circle
mm
(in) 114.3 (4.5) Wheel
Material Steel
or
aluminum alloy Steel
Wheel
Number
of

fixing nuts
13 inch-wheel 4
4
or 5

Wheel
Number
of

fixing nuts 14 inch-wheel 5 4
or 5

Wheel
Number
of

fixing nuts 15 inch-wheel 5 4
or 5

Tire
Size
13 inch-wheel
6.45-13-6PR 165SR13 165/80R13 82S
185/70HR13 185/70R13 85H
T125/70D15
Tire
Size
14 inch-wheel
185/70HR14 185/70R14 87H 185/70R14 88H 185/70VR14
T125/70D15
Tire
Size
15 inch-wheel 195/60R15 86H 195/60VR15
T125/70D15
Tire
Air pressure kPa (kg/cm2, psi)
Front 216 (2.2, 31)
or
196 (2.0, 28)
Refer to tire labels for applications 412 (4.2, 60)
Tire
Air pressure kPa (kg/cm2, psi) Rear 177 (1.8,
26)

412 (4.2, 60)
Wheel and tire
Runout
mm (in)
Horizontal Steel wheel: 2.5 (0.098), Alminum allov wheel: 2.0 (0.079) max.
Wheel and tire
Runout
mm (in) Vertical 2.0 (0.079) max.
Wheel and tire Unbalance

g
(oz)
13 inch-wheel 11 (0.39) max. Wheel and tire Unbalance

g
(oz) 14 inch-wheel 10 (0.35) max.
Wheel and tire Unbalance

g
(oz) 15 inch-wheel 9 (0.32) max.

13. SUSPENSION
Item Specification
Front suspension

Type Strut
Toe-in
mm
(in) 0 ±
3 (0
±
0
12)
Front wheel alignment Camber angle 0°17' ±
45'
Front wheel alignment Caster angle 1 °13' ±
45'

King pin angle 12C 47'
Maximum front Inner 36°26'33"
steering angle Outer 30°59'15"
Stabilizer Type Torsion
bar
Stabilizer Diameter
mm (in)
20.0 (0.79)
Shock absorbers Standard suspension Oil type Shock absorbers Auto adjust suspension Low-pressure gas sealed type
Identification color Orange Green Light green Pink Brown Purple Gray Blue
Wire diameter
mm (in)
12.5
(0.49)
12.6
(0.49) 12.8 (0.50) 12.9 (0.51) 13.1 (0.52) 13.3 (0.53) 13.6 (0.54) 13.7 (0.54)
Coil springs* Coil inner diameter mm (in) 147.5 (5.8)
Free length
mm
(in) 344 (13.5)

CO <35
362
(14.3)
370
(14.6)
372 (14.6) 365 (14.4) 350 (13.8) 358 (14.1)
Coil number 4.99 5.09 5.31 5.42 5.53 5.46 5.34 5.45
* Refer
to
pages 13—5,6,7
for
coil spring applications

30-38